Left hand speaker muffled and staticy

Question

MacBook Air 13" Retina 2019

Repair information and guides for the minor refresh of the Late 2018 MacBook Air, with the same model number (A1932) and EMC number (3184). This model features a True Tone display and a slightly revised battery.

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SeanErik @seanerik

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Опубликовано: 9 апр 2021 г.

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Left hand speaker muffled and staticy

Okay, my MacBook Air’s left-hand speaker is weird. It very very muffled and full static when compared to the right.

I thought it could be water damage and decided to replace it. I did that myself and it all went well and then went to check and no change on that speaker. It was the same as before not even a single change or improvement.

I ran Mac diagnostics, nothing came up. I also reset NVRAM/PRAM as someone had suggestion that might help. Still nothing. I’m at a total loss of what to do.

Also, I am 100% sure when I got it first it was working fine.

Ответ на этот вопрос У меня та же проблема

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score 0 · Answer 1 · 2021-04-10T05:53:37-07:00

Dan @danj

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What do you hear when you plug in a good set of headphones in via the headphone jack? Use the balance control to bias which headphone is playing. Do you hear it with the headphones?

If you do then the MacBook Air 13" (Late 2018-Mid 2019) Audio Daughterboard or MacBook Air 13" (Late 2018-Early 2020) Audio Daughterboard Cable to the logic board is the issue. If its clean on both sides, then the logic board speaker cable connector has a problem.

Review this guide: MacBook Air 13” Retina Display Late 2018 Audio Board Replacement

Продукт

MacBook Air 13" (Late 2018-Early 2020) Audio Daughterboard Cable

$19.99

Продукт

MacBook Air 13" (Late 2018-Mid 2019) Audio Daughterboard

$119.99

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Earphones have no problem with this. Only occurs when I use the in built speaker,

10 апр 2021 г. из SeanErik

Look at the logic board for corrosion.

10 апр 2021 г. из Dan

@danj I am pretty sure there was none since I did open up when replacing the speaking thinking that was the issue, and saw nothing much there in terms of it looking diffrent.

10 апр 2021 г. из SeanErik

I think you'll need to bring your system into someone who has the skills to diagnose your issue. There is a limit on what I can offer for help.

10 апр 2021 г. из Dan

@danj Thank you. Just wanted to exhaust all options before I did that in case it's something I can fix on my own. Really appreciate you taking you time to try and help me.

10 апр 2021 г. из SeanErik

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Oliver Schulze @oliversl Репутация: 1 1 · Answer 2 · 2023-09-05T10:14:45-07:00

Oliver Schulze @oliversl

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I had the same problem with 2 Macs, the solution was to clean the grille with a dry/clean toothbrush. The issue was that the micro-holes were blocked, which can be confirmed by passing light through them.

I could diagnose the problem by connecting the speaker without installing it, I leave it carefully hanging and it sound really loud.

I attach a photo of the blocked micro-holes.